If you drop object,acceleration to groud is 10m/s2, if you throw it would it be greater than 10m/s2? (ignore air resistance) Why or why not?
No.
first, the acceleration due to gravity on Earth is not 10m/s^2, anywhere. It is very close to 9.81 m/s^2. This is the acceleration due to gravity, it does not matter what the velocity is. Acceleration is constant.
When you drop an object, it falls under the influence of gravitational force. This force, known as the acceleration due to gravity, is approximately 9.8 m/s^2 on Earth, and is typically represented by the symbol "g".
When an object is dropped, it accelerates downward at a steady rate of 9.8 m/s^2. This means that every second, its velocity increases by 9.8 m/s. This constant acceleration is due to the gravitational force pulling the object towards the center of the Earth.
When you throw an object upwards, it initially moves against the direction of the gravitational force. However, after reaching its peak height, the object starts to fall back down towards the ground. During its upward motion, the object experiences a deceleration due to the opposing gravitational force, which reduces its velocity.
Whether the acceleration while throwing an object is greater, less than, or equal to the acceleration due to gravity depends on how it is thrown. If the object is thrown upwards with less than 9.8 m/s^2 of initial velocity, the acceleration during its upward journey will be less than the acceleration due to gravity. On the other hand, if the object is thrown upwards with initial velocity greater than 9.8 m/s^2, the acceleration during its upward journey will be greater than the acceleration due to gravity.
However, regardless of the initial velocity, when the object falls back towards the ground, it will experience the acceleration due to gravity, which is a constant 9.8 m/s^2. Therefore, the acceleration in both cases (dropping and throwing) will be 9.8 m/s^2 once the object starts descending.
In summary, if you throw an object upward, the acceleration during its upward journey can be greater or less than the acceleration due to gravity, depending on the initial velocity. However, once the object starts to fall back down, the acceleration will be the same, which is 9.8 m/s^2.